Permit required. It shall be unlawful for any person, firm, or corporation, to erect, alter, locate or relocate, reconstruct or change in any manner within the Township any sign or signs having an area greater than six square feet, without first having obtained and paid for and having in force a permit therefor from the Zoning Officer.
(1) The following two operations shall not be considered creating a new sign and therefore shall not require a sign permit:
(a) Replacing copy: the changing of the advertising or message on an approved sign which is specifically designed for the use of a replaceable copy.
(b) Maintenance: painting, cleaning and other normal maintenance and repair of a sign or sign structures, unless a structural change is made or there is a change in message.